Thermal Imaging Lie Detector In Development

beaverdownunder writes with this quote from the BBC: "A sophisticated new camera system can detect lies just by watching our faces as we talk, experts say. The computerized system uses a simple video camera, a high-resolution thermal imaging sensor and a suite of algorithms. ... It successfully discriminates between truth and lies in about two-thirds of cases, said lead researcher Professor Hassan Ugail from Bradford University. ... We give our emotions away in our eye movements, dilated pupils, biting or pressing together our lips, wrinkling our noses, breathing heavily, swallowing, blinking and facial asymmetry. And these are just the visible signs seen by the camera. Even swelling blood vessels around our eyes betray us, and the thermal sensor spots them too."

Re:Practiced lying can defeat lie detectors...

[DRJlaw]

... all you have to do is memorize and rehearse lies in advance and imagine them and recall them as if they were memories. People get caught in lies because it's cognitively demanding to make it up on the spot unprepared.

From what I've read, you're supposed to randomly lie or tell the truth on the easy questions they ask at the start to gauge your response.

From what I've read, you're supposed to shut the hell up and invoke your right to be silent if you're being questioned about things you have done.

Lying to public officials, especially federal officers, is in and of itself a crime. Lying gives officials facts which they can cross-check. Lying is something that ordinary people are generally bad at, and interrogators know how to get a suspect to move outside their pre-rehearsed alibis.

Staying silent is not a crime. Staying silent does not allay an official's suspiscion, but cannot be used to convict you of a crime. Staying silent is something that oridinary people are generally bad at, but it's a hell of a lot easier to practice.

Identify yourself, produce whatever ID you normally carry, and decline to speak about anything else unless you have carefully thought out what you are about to say, know that it is does not tend to indicate that you've committed some sort of crime, and know that it is the truth.

The rules are quite different if you are being questioned about someone else or what they have done. But that's another story.